Clamp for drum



FIG. 1 is a top, front perspective view of a clamp for drum showing my new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a right side view thereof, the left side view thereof being a mirror image; and

FIG. 6 is a bottom view thereof. 

The ornamental design for a clamp for drum, as shown and described. 